Razor blade holder



July 15, 1946.

RAZOR BLADE HOLDER Filed Dec. 11, 1943 Edy-'1 J. NELSON 2,404,141

part of the spring urged pin may Patented July 16, 1946 e JenningsNelson; St. Paul, Minn. Application December 11, 1943, Serial No.513,899

My invention relates to an improvement in scraper blade holders, whereinit is desired to provide a novel and effective means of holding a razorblade for scraping purposes.

The object of my invention lies in the provi-r sion of a scraper bladeholder supporting a razor blade so that it may retract or project'fromits holder. In retracted position the scraper blade edge is held inprotected position. In projected posi-tion the razor blade is inreadiness for Vfull operation for its designed purpose. i

A feature of the present invention lies inthe provision of a novel meansfor holding the razor blade in selected position. This means comprises apin or knob which is secured to the reinforcing plate to which the razorblade is secured, and which extends through a slot in the hollowenclosure in which the razor blade and reinforcing plate are slidablypositioned. This pin or knob is engageable in spaced enlargements in theslot sov that the blade may be held in adjusted position.

A further feature of the present invention lies in the simplicity ofassembly of the apparatus The razor blade is removably secured to itsslidable reinforcing member and a spring pin device 15 Claims. (C1.30-162) sition my reinforcing plate structure is arranged is alsoattached to this reinforcing plate structure.

The razor blade and its .reinforcing plate may then be inserted into thehollow body of the holder, and is mounted therein for retractablemovement.

A feature of the fact that lthe portion of the hollow enclosureadpresent invention lies in the t jacent the slot in which theadjustment pin is'` engaged is ofi-set ontoa, plate parallel theadjacent surfaces of the enclosure., Accordingly a lie interiorly of theslot edges to hold the `pin or knob in proper relation to thereinforcing plate.

A feature of one form of myvinvention lies in` the provision of a slotat one side edge of the holder through which a blade may be inserted orrejected. Accordingly blades maybe changed whenvfound necessary ordesirable without removing the supporting reinforcing member from itsenclosure. a

A further feature of my invention lies in the fact that the holder maybe such as to support a razor blade of the double edge type or of thesingle edged type. The reinforcing plate is reversibly positioned in itsenclosure and is removable therefrom, .tionto the holder av single edgedblade is lsupported for slidable movement receded into or projecting`from the enclosure. In reversed ypo- When in one position in rela-v sesto support a blade ofthe doubleedged type, either receded into orprojecting from the enclosure. Thus my holder is useable with blades ofeither of these types.

These and other objects and novel features of my invention will be moreclearly and fully set forthin the following specification and claims.

In the drawing forming a part of my speciiication:

Figure 1 is a top holder, a portion to show the construction thereof.

Figure 2 is a longitudinal section through the holder illustrated inFigure 1, lthe position of the section being indicated bywthe line 2 2ofV Figure 1.

Figure 3 is a cross-sectional view through the holder, the position ofthe section being indicated by the line 3 3 of Figure 1.

Figure 4 is a cross-sectional view through the plan view of my razorblade handle portion of the tool, the position of the section beingindicated by the line 4 4 of Figure 1. I

Figure 5 is a top plan View of a modified form of holder constructionshownholding a double edged blade in retracted position.

Figure 6 is a the double edged blade in projected position,V

Figure 7 is a view similar to Figures 5 and 6 showing the holderclamping a single edged type razor blade in projected position. Y

Figure 8 is a sectional view through the holder,

the position of the section being indicated bythe y line 8 8 of Figure5.

line 9 9 of Figure 6.

Figure 10 is a sectional view through the hold-eri position of thesection beshown in Figure 7,the ing indicated by the une in ln of Figure7( The homer A, illustrated 4 of the drawing, comprises of which hasbeen broken away view similar to Figure 5 showing in Figures 1l throughY opposed n panel I2 extends rearwardlyv beyond the remaining panels andis provided with handle, lthis closure lplate 2'3 vis thus .held inportions 3 I ,i of clamping Vplates 33` and movement-through the 3 acentral bulge I'I which extends into the integral handle portion ll. Thehandle II is provided with oppositely positioned side walls I9 and 20and with a down-turned end ange 2| forming a reinforcement for thehandle and also providing a channel-shaped hollow within the handle inwhich extra rrazor blades may be kept.

A tongue 22 is bent from the material forming the handle, atsubstantially the longitudinal center of the. handle, asbest illustratedin FigT ure 2 of the drawing. A closure plate 23 is shaped to fitbetween the side walls I9 and 2D of the plate being, provided withtongue 2A which extends beand the under-surface of an upwardly curvedtween the tongue 22 the handle body I I. 26 are provided on the closureplate 23, which fit within the side wall flanges 23 and I9,respectively, of the handle I I, as illustrated in Figure 4 of thedrawing. spaced apertures 2l. are providdin the side wall flangesV I9andv 20, andraised knobs 29 on the flanges `25v and 25 engage in theseapertures 2l under springtension. The closure place under spring tension`and may support a series of extra razor blades, illustrated in generalbylthe'numeral B, Contained Vwithin the h llow body of the handle||,"','V j.

Extending longitudinallyof the head I5, I provide in the upper panel I2a slot 3). Portions 3l on 'opposite sidesof the Vslot 3i) "are cir-setinto vspaced. parallel relationwith the remainder et Opposed side ang'es25 and the upper panel I2 of the Yhead l5. The-offset Y l are connectedby olf-'sets tothe remainder of the surface'ofthe panel-I2.

- The razor bladevreinforcing comprises a pair 34, whichr are spotwelded, Aor otherwise connected together. Spacing flanges and 33 areprovided on the rear edgegof these plates 33 and 34, respectively. isoas -to hold the plates in proper relation to the head Ill. The plates 33and 3% areprovided'wi'th oiif-setv portions 31 and 39 which terminateinclamping lips 40 and 4I, respectively. The ofi-set portions 3lY and 33are spread apart to receive the reinforcing edge 42 on the blade 32 ofaasingle edged razor'blade C.l The clamping lips 43 and 4I Iengage theblade 43 *outwardlyV of the reinforcing member '32 embracing the edge'of the blade `43 opposite the cutting edge thereof. A finger- 44 isbent up fromAv about the center of the upper plate 33 and, extendsupwardly at Vsubstanti`ally"right angles thereto. A conical 'spiralsifri'rigl 45 encircles this nger 44 and isL secured at its smalldiameter endj of thevs'pring 45 is'resiliently held Within the' circularrecess 45 within the circular flange l of the yadjusting button 43. Theiiange 41' is varrang-edV to ride beneath the'oi-setfportions of theheadI-Il adjacent the s'lot '30, this flange '4l retainingv the adjustmentpinY 49 fromV loutvvfard sloten.' v Y /A-'c'ircular shoulder :5'31isprovided adjacent the shoulderl either? of a pair along the siotiatale-ny acjustedrpesinon: f

end to the ringer Yadjacent the'rsurface "of the platev'33. The largediameter 53 being engageable in of circular enlargements 5I 'and'`52Lin`V the. slet 30. When the adjustment pin 45 isfin' registryWitheither The pin 48 is provided with a hollo'w cylindrical shank 53and a head 54 at the upper extremity thereof. The shank 53 is of properinterior diameter to accommodate the upper end of the iinger 44. Thisshank 53 is also of proper outside diameter to slide longitudinallywithin the slot 30. Thus when the pin 49 is depressed, compressing thespring 45, the pin may slide from' one extreme position to the other.

, In order to prevent the razor blade and its reinforcing plates 33 and34 from sliding out of the once the holder provide a finger 55 which is.preferably broken upwardly from the bottom plate I6 into thelongitudinal slot 56 in the plates 33 and 34. This linger 55 is formedin the lower plate I3 during the formation of the holder, but remainsccplanar with the plate i5 until the razor blade reinforcing plates 33and 34 are engaged within the headll.y Through the use of a'ysuitableinstrument the finger 55is then broken upwardly into* the slot55, thusA limiting the slidable movement of the razor blade and Y.itsreinforcing plates and holding the reinforcing plates assembled withinthe'head I0. n

As best illustrated in'Figures l and 3 of the drawing', a slot 51 i'sprovided in the'side edge I3 of the'head Ill, extending toward the rearof the head some distance from the front edge thereof. This slot 51 isprovided to permit inser tion `and withdrawal of therazor blade C frombetween the plates 33 and'34.. .When the'razor vblade is in theprojected'vposition illustrated in vpartially removed position in dottedoutlineV in Figure 1 of the drawing. When 4the blade is in retractedposition, i-t lis held fromlateral slidable movement by the side edge-I3 of the head IIJ.

From the foregoing/description it will be obvious that a `singleedgerazor blade may .be .inserted between or withdrawn from between thereinforcing plates 33 and 34 at any time the blade is in .extendedposition. When inthe retracted position described the blade isheldtightly from movement by engagementof the circular shoulder 50 vvitlfithe enlargement 52 `in theslot 32..

When.' moving longitudinally from :one eXtrem-e position to the otherbutton orv lpin 4331s fde-r pressed until the shoulder 59 vis positionedfbeneath the off-set portions blade and its reinforcing plates may beYmoved rearwardly to retract the-'blade until the-shoulder 50 engagesinthe circular enlargement 5I. Wheniin thi-js extreme position, theblade is Aheld from movement by engagement ofthe shoulder 50 within therecess 5l, and the lblade will remain yretracted until the pin 49 'isagain depressed and' longitudinal to move the blade into open position.

In Figures 5 through l0 Vof the drawing YI'd'isclo'se a Vmodified formVof holder, which vhas many features in common with the constructionabove described. This razor blade holder Dis provided' with no handleand `is yextremely compact, and

therefore Acan 'be easilyV carried in a pocket or4 purse.,

The ,noleer vD meiddfes" ag hcucw' ieetangiilar outer lbotilyfhaving aslot in'one edge thereof 'from' has been assembled, I Y

plates 33 and 33B, whereupon the force exerted thereupon j extremity ofthe shank 'l5 and this which the blademay project. 'I'hebody ispreferably formed of an upper panel 'having marginal flanges 6| alongthree adjoining marginal edges thereof. 'I'he flanges 6| and 63 extendinto telescopic relationship and are securedA together to hold the upperand lower panels 6U and 62, respectively, in substantially parallelrelationship. 'Ihe provision of along three adjoining edges leaves afourth edge 64 open, and it is through this open edge that the blade andits reinforcing-member may project and retract. g Y

The upper panel 60 is provided with a slot 65 therein at substantiallyright angles to the open front side 64. PortionsA 66 of the upper panel60 are off-set onto a plate substantially parallel and above the planeofthe remainder of the panel 60, these oif-set portions 66 beingconnected by offsets 61 to the remainder of the panel. The slot 65` isprovided with three longitudinally yspaced circular enlargements 69, 10,and 1|.

The razor blades are arranged to be clamped between two separateclamping plates 12 and '13. The upper clamping plate 'I2 is providedwith an upstanding ear i4 cut therefrom and arranged to extend into thehollow shank 'I5 of the headed'adjusting pin'l. The Yshank 15 is ofproper outer diameter to slide in the slot 6,5 and is provided with acircular flange or shoulderll of a size to fit snugly within theenlargements B9, 'I0 and 1|.

A still larger at the lower ilange 79 is recessed to receive the largediameter end ofa spiral coil spring 80. The 'small diameter end of thespring 80 is engaged in opposed notches formed at the baSeof the ear 74.lThe headed pin 'I6 and the upper reinforcing plate 12 are held togetherby the spring 80. V

4`The upper plate 12 is provided with a pair of oppositely disposedspaced apertures 8l therethrough, while the lower plate 13is providedwith uptu'rned circular projections 82 which engage within the apertures8 I These projections 82 arearranged to fit through the perforationsorigflange 19 is provided Ainally found in double edged razor blades,and

the projections hold the blade from twisting with respect to thereinforcing plates 12 and 13.

When the razor blade holder D is holdinga double edged razor blade E, asillustrated in Figures 5, 6, and 9 of the drawing, the projections 82extend 'through apertures in the blade E, and one edge' of the bladeVprojects beyond the adjacent edges of the reinforcing plates 12 and 13.

when the blade E is in retracted position, as'

illustrated in Figure 5 of the drawing, the adjusting button or pin 16is engaged in the central enlargement 10. When it is desired to projectthe razor blade E the pin 'I6 is depressed, compressing the spring 8 0and longitudinal pressureis applied to slide the razor blade `E 12illustrated in Figures-6 and 9 ofthe drawing.

The shoulder 11 then engages in the enlargement" 1I, holding the bladein projectingfposition. The blade is retracted by depressing the button76 and sliding the blade and plates rearwardly until the shoulder l1becomes engaged'in the enlargement 10. Y

. When the holder D is used for supporting a single edged razor blade F,as illustrated in Figures 7 and 10 of the drawing,xthe position of thereinforcing plates .12 and 'I3 is reversed. The reinforcing strip 83embracing the rear edge of the4 blade F engages inlongitudinallyextending slots 84 and 85 in the reinforcing platest'IZ-and 1.1.3, re,-

the flanges SI and 63/ and its plates and 13 outwardly into theprojecting positionv spectively.` When thus reversed,.the blade F' willbe found to be in button 16 is in the intermediate slot enlargement 1,0.By depressing theV pin or button 16 and exerting a rearward pressure onthis pin or button, the razor blade may be slidably moved into retractedposition in which the shoulder 'l1 is en gaged in the enlargement 69.Thus the holder is suitable for use with either type of blade,whether'it be possessed of two cutting edges or a single cutting edge. v

In accordance with the patent statutes, I have described the principlesofy construction and operation of my razor blade :holders and while Ihave endeavoredA to set forth the best embodiments thereof, I desire tohave it understood that these'are only illustrative of a means ofcarrying out my invention, and that obvious changes may be made withinthe scope of the following claims without departing from the spirit ofmy invention;

I claim:

1. A razor blade holder comprising a hollow receptacle having an openside'therein, a pair of reinforcing plate means slidable in unisontoward and away from said open side, razor blade means means on saidoperating means resiliently urged into said enlargements to hold saidreinforcing plate means .from movement toward or 'away-from said openside of said receptacle.

'2; A razor blade holder comprising a hollow receptacle having an openside, a pair of clamping plate means within said receptacle and slidableinunison toward and away from said open side, a slot in said holderextending at substantially right angles to said open side andcommunieating therewith, Aspaced enlargements in said slot, meansresiliently secured to said reinforcing plate means for sliding the sametoward and away from said open side, said operating means extendingthrough said slot, means on said operating means engageable in saidspaced enlarge-- ments to hold said'reinforcing plate Vmeans fromslidable movement, and a razor blade secured be'- tween said reinforcingplate means for movement therewith.

3. A vrazor blade holder comprising a hollow receptacle having an openside therein, a slot in said receptacle extending at substantially rightangles to said open side and communicating therewith, 'a .pair ofreinforcing plate means slidably positioned in said receptacle formovement .in unison toward or away fro-m said open side,` an operatingbutton resiliently secured to said reinforcing plate means and extendingthroughsaid slot, a razor blade secured between said reinforcing platemeans and slidable therewith from a position projecting from said openedge to fully enclosed position, and spaced en-t 4. A razorxblade holdercomprlsingaflhollowg projecting position when the vin another of saiden' hold said razor blade' in enclosed:v

second ange outwardly of said 7 receptacle' having an open side, a pairof reinforcing plate means slidable in unison in said hollow receptacleand designedrto support a razor blade therebetween, a slot in saidreceptacle extending at substantially right angles with respect to saidopen side thereof .andcommunieating therewith, nger means on one of saidreinforcing plate means projecting, toward said slot, an operatingbutton mounted on said finger for axial movement with respect thereto,resilient means between said button and said reinforcing plate'means, .aliange onsaid 'button engageable within said receptacle inwardly of saidslot,4 shoulder means'adjacent said flange, spaced enlargements .in saidslot adapted to receive said' shoulder means, and button head means onsaid 'buttonv extending Vthrough said slot.

y5. A razor blade holder comprising substantially flat receptacle havingan open side, a slot in .said receptacle extending at substantiallyright angles to said open side, outwardly .off-set portions adjacentsaid slot,V a button having a flange inwardly of said off-set portions`and `a Aoff-set portions,

razor blade supportingk means said receptacle, and means resiliently.connecting said button'to said razor blade supporting means'.

6. A razorblade holder comprising a'hollow receptacle having vanopenside, a razor blade supporting means within said bodyjslidable towardand away from fsaid open side, a slot in said-receptacle body extendingat substantially right angles to said open side, outwardly off-setportions `in said receptacle body on opposite sides of said slot formingan outwardly bowed slotted channel in said receptacle body, a button insaid slothaving a flange slidable in said channel and a Asecond flangeoutwardly ofr said body, said button extending through said slot, meansresiliently lsecuring said but-ton to said razor blade supporting means,spacedenlargements in said slot, gageable in Isaid enlargements to" holdsaid razor blade supporting means in a selected position.

'7. A razo;1 blade holder kcomprising a hollow receptacle body having anopen side, a razor blade supporting means engageable with oppositeA'sides of a blade slidable in said body toward and-away from said l penside, a slot in saidl receptacle extending atr substantially rightangles'fto Vsaid open side-and communicating therewith, spacedenlargements in said slot, .-a button extending through said slotresilient means connecting said button to ysaid razor blade supportingmeans, resiliently engageable in said enlargements, and

Vmeans for 'limiting the outward movement of said razor blade supportinglmeans with respect to said body. Y,

'8. A razor blade holder comprising a hollow receptacle body having anopen side, .a razor blade supporting means engageable with oppositesides of 1a blade slidable in said 'body toward and :away from said openside, Aa slot'iin said bodyr at substantially right .angles to said openside, a button extending through. .said gslot, a iinger means on saidrazoi'blade supporting means engaging said button to" guide the same,

and ,resilient means connecting .said finger means f and said button. v

.9,.A razor blade' holder for single .edged .razor Sldable and shouldermeans onv said button enshoulder meansv on said buttonr v ing said razorblade ward and away from said open vend, sal-d razor blade clampingmeans including a pair 'of resilient plates embracing thethickenedv'edge Yof the blade and contacting opposite -sdes -of theblade adjacent the thickened edge,` a slotv in said body atsubstantially right angles to said open end, means secured `to saidrazor blade clamping means and extending through saidy slot Aforactuating said razor bladey clamping means, and a slot in an edge ofsaid receptacle body adjaen-t Said open end, said slot registeringwith-the thickened edge of said blade in one positionthereof, said bladebeing removable from between said clamping meansthroughsaid slot. A l

1o. A razor blade holder Comprisinga hollow receptacle body having anopen end, a slot in said body extending at substantially right angles toAsaid open end, a razor blade support' slidable within said body towardand away from said open end, said support including a pair of clampingplates engageable with said blade to hold said blade from longitudinalmovement relative t0 saidsupport while'permitting transverse move-ymentY thereof relative to said support, means on said support'extendingthrough said slot for movsupport, and a slot in said body registerablewith said razor blade in one position thereof to permit said razor bladeto' be Y slidably disengaged from plates. p Y

11. A razor blade holder comprising a hollow receptacle body having anopen end, a Vslot lin said body extending at substantially right anglesto sai'dopen end, a razor blade rsupport .slidable .withinsaid body and,movable towardgand away from said Vopen end, an operating means on saidsupport extending through said slot, saidV razor blade support includinga pair of substantially flat, plates designed to lie in superimposed,relationship, transversely extending elongated regis'- tering slots,through said plates adapted to vrebetween said `clamping ceive thethickened edge of. a single edged razor Y i blade, spaced apertures inone of said plates', and I lugs unl-,the other of .said plates designedto eX- tend into said apertures to hold said plates inV proper relativeposition. Y 1

. 12. VArazor blade Vholder for Asupporting single edged razorbladeswith Aa thickened reinforcing edge-and for supporting doubleedged-razor blades with spaced apertures therethrough, .comprisingabody, a razor blade support movably secured y relative to said body,lsaid support .comprising a pair of .superimposed plates, elongatedregistering slots through said plates. .adapted to receive the4thickened edge of asingle edged ,razor-blade,

blades havingv a thickened edge opposite thefcut- Y tingpedge thereof,the holder comprising a holhaving an open end,.a razor low receptaclebody blade: .clamping means `slidable Vin Vsaid Jbody Ytoa pairof spacedapertures -in one of said plates, anda pairot-spaced lugs in the otherof said platesdesigned to extend through said apertures and through `theapertures of a double edged razor blade. f i gl. A razor blade holdercomprising a `hollow receptacle having anopen end, reinforcing platemeans slidablyy-supported in said hollowreceptacle and-movable towardand away from said open end', said reinforcing plate .means Varranged tosupport a razor blade,paeslot in said reinforcing plate meanslongitudinallyv ofthe direction :of

movement thereof withinl said .hollow receptacle, and a finger .onsaidhollowreceptacle engagable .inLsaid Slot to .limit slidable movement.-off

said freinforcingfplate means relative ,to Asaid ho'l; low receptacle. yf

1 .14.1K .razorfblade holderfor a razor blade ing? areinforceded'gecomprising a, lhollow ecep..`5

tacle having an open side, reinforcing plate means slidable in saidhollow receptacle toward and away from said open side and including apair of clamping members designed to embrace the reinforced edge of arazor blade and to engage said blade adjacent said reinforcing edge, aslot in one edge of said hollow receptacle in communication with saidopen end through which the reinforced edge of the razor blade may slidelaterally with respect to the direction of movement of said reinforcingplate means, a slot in said reinforcing plate means longitudinally ofthe direction of movement thereof, and a linger ori said hollowreceptacle slot to limit outward movement of said reinforcing platemeans relative to said hollow receptacle.

engageable into said- 10 115. A razor blade holder forv single edge razoblades having a thickened edge opposite the cutting edge thereof, theholder comprising a hollow receptacle body having an open end, a razorblade clamping means slidable in said body to- Ward and away from saidopen end, said razor blade clamping means including a pair of resilientplates embracing the thickened edge of the blade and contacting oppositesides of the blade adjacent the thickened edge, and a slot in the edgeof said receptacle body adjacent said open end, said slot registeringwith the thickened edge of said blade in one position thereof,

n said blade being removable from between said clamping means throughsaid slot.

J ENNIN GS NELSON

